public void Dispose()
{
this.cardDetectionTimer.Change(Timeout.Infinite, Timeout.Infinite);
this.cardDetectionTimer.Dispose();
LibMifareApi.ftrMFCloseDevice(this.handle);
}
public CardReader AccessCardReader()
{
var handle = LibMifareApi.ftrMFOpenDevice();
if (handle != IntPtr.Zero)
{
return(new CardReader(handle));
}
throw new Exception("Cannot open device");
}
private void CardDetectionCallback(object state)
{
LibMifareApi.ftrMFStartSequence(handle);
var cardTypeBytes = new byte[1];
var serialNumberBytes = new byte[8];
LibMifareApi.ftrMFActivateIdle8bSN(this.handle, cardTypeBytes, serialNumberBytes);
LibMifareApi.ftrMFEndSequence(this.handle);
var cardType = (CardType)cardTypeBytes[0];
var isCardPresentNow = cardType != CardType.Invalid;
if (isCardPresentNow != IsCardPresent)
{
if (isCardPresentNow)
{
var serialNumber = BitConverter.ToUInt64(serialNumberBytes, 0);
this.CardSerialNumber = serialNumber;
this.CardType = cardType;
this.IsCardPresent = true;
this.OnCardDetected(new CardDetectedEventArgs {
SerialNumber = serialNumber, Type = cardType
});
}
else
{
this.IsCardPresent = false;
this.CardType = CardType.Invalid;
this.CardSerialNumber = 0;
this.OnCardRemoved();
}
}
}